qt5base-lts/util/cmake/README.md
Mitch Curtis 8185da097a CMake: pro2cmake: Add alternative package installation instructions
I kept getting

Ignoring pytest: markers 'python_version >= "3.7"' don't match your environment

when using the pip command, but this alternative worked.

Change-Id: Ibfc7f36de04153d2247f8f62bd129b0c0c723bf2
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2020-03-18 14:44:10 +00:00

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# CMake Utils
This directory holds scripts to help the porting process from `qmake` to `cmake` for Qt6.
# Requirements
* [Python 3.7](https://www.python.org/downloads/),
* `pipenv` or `pip` to manage the modules.
## Python modules
Since Python has many ways of handling projects, you have a couple of options to
install the dependencies of the scripts:
### Using `pipenv`
The dependencies are specified on the `Pipfile`, so you just need to run
`pipenv install` and that will automatically create a virtual environment
that you can activate with a `pipenv shell`.
### Using `pip`
It's highly recommended to use a [virtualenvironment](https://virtualenv.pypa.io/en/latest/)
to avoid conflict with other packages that are already installed: `pip install virtualenv`.
* Create an environment: `virtualenv env`,
* Activate the environment: `source env/bin/activate`
(on Windows: `source env\Scripts\activate.bat`)
* Install the requirements: `pip install -r requirements.txt`
If the `pip install` command above doesn't work, try:
```
python3.7 -m pip install -r requirements.txt
```
# Contributing to the scripts
You can verify if the styling of a script complaint with PEP8, with a couple of exceptions:
Install [flake8](http://flake8.pycqa.org/en/latest/) (`pip install flake8`) and run it
on the script you want to test:
```
flake8 <file>.py --ignore=E501,E266,W503
```
* `E501`: Line too long (82>79 characters),
* `E266`: Too many leading '#' for block comment,
* `W503`: Line break occurred before a binary operator)
You can also modify the file with an automatic formatter,
like [black](https://black.readthedocs.io/en/stable/) (`pip install black`),
and execute it:
```
black -l 100 <file>.py
```
Using Qt's maximum line length, 100.